blob: 91ff9829353f05a0af9dd8132ea763bcf4336b6c [file] [log] [blame]
// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "../../../include/fxge/fx_ge.h"
#include "../../../include/fpdfapi/fpdf_render.h"
#include "../../../include/fpdfapi/fpdf_pageobj.h"
#include "../fpdf_page/pageint.h"
#include "render_int.h"
extern FX_BOOL IsAvailableMatrix(const CFX_AffineMatrix& matrix);
CPDF_Type3Cache::~CPDF_Type3Cache()
{
FX_POSITION pos = m_SizeMap.GetStartPosition();
CFX_ByteString Key;
CPDF_Type3Glyphs* pSizeCache = NULL;
while(pos) {
pSizeCache = (CPDF_Type3Glyphs*)m_SizeMap.GetNextValue(pos);
delete pSizeCache;
}
m_SizeMap.RemoveAll();
}
CFX_GlyphBitmap* CPDF_Type3Cache::LoadGlyph(FX_DWORD charcode, const CFX_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX, FX_FLOAT retinaScaleY)
{
_CPDF_UniqueKeyGen keygen;
keygen.Generate(4, FXSYS_round(pMatrix->a * 10000), FXSYS_round(pMatrix->b * 10000),
FXSYS_round(pMatrix->c * 10000), FXSYS_round(pMatrix->d * 10000));
CFX_ByteStringC FaceGlyphsKey(keygen.m_Key, keygen.m_KeyLen);
CPDF_Type3Glyphs* pSizeCache = NULL;
if(!m_SizeMap.Lookup(FaceGlyphsKey, (void*&)pSizeCache)) {
pSizeCache = FX_NEW CPDF_Type3Glyphs;
m_SizeMap.SetAt(FaceGlyphsKey, pSizeCache);
}
CFX_GlyphBitmap* pGlyphBitmap;
if(pSizeCache->m_GlyphMap.Lookup((FX_LPVOID)(FX_UINTPTR)charcode, (void*&)pGlyphBitmap)) {
return pGlyphBitmap;
}
pGlyphBitmap = RenderGlyph(pSizeCache, charcode, pMatrix, retinaScaleX, retinaScaleY);
pSizeCache->m_GlyphMap.SetAt((FX_LPVOID)(FX_UINTPTR)charcode, pGlyphBitmap);
return pGlyphBitmap;
}
CPDF_Type3Glyphs::~CPDF_Type3Glyphs()
{
FX_POSITION pos = m_GlyphMap.GetStartPosition();
FX_LPVOID Key;
CFX_GlyphBitmap* pGlyphBitmap;
while(pos) {
m_GlyphMap.GetNextAssoc(pos, Key, (void*&)pGlyphBitmap);
delete pGlyphBitmap;
}
}
static int _AdjustBlue(FX_FLOAT pos, int& count, int blues[])
{
FX_FLOAT min_distance = 1000000.0f * 1.0f;
int closest_pos = -1;
for (int i = 0; i < count; i ++) {
FX_FLOAT distance = (FX_FLOAT)FXSYS_fabs(pos - (FX_FLOAT)blues[i]);
if (distance < 1.0f * 80.0f / 100.0f && distance < min_distance) {
min_distance = distance;
closest_pos = i;
}
}
if (closest_pos >= 0) {
return blues[closest_pos];
}
int new_pos = FXSYS_round(pos);
if (count == TYPE3_MAX_BLUES) {
return new_pos;
}
blues[count++] = new_pos;
return new_pos;
}
void CPDF_Type3Glyphs::AdjustBlue(FX_FLOAT top, FX_FLOAT bottom, int& top_line, int& bottom_line)
{
top_line = _AdjustBlue(top, m_TopBlueCount, m_TopBlue);
bottom_line = _AdjustBlue(bottom, m_BottomBlueCount, m_BottomBlue);
}
static FX_BOOL _IsScanLine1bpp(FX_LPBYTE pBuf, int width)
{
int size = width / 8;
for (int i = 0; i < size; i ++)
if (pBuf[i]) {
return TRUE;
}
if (width % 8)
if (pBuf[width / 8] & (0xff << (8 - width % 8))) {
return TRUE;
}
return FALSE;
}
static FX_BOOL _IsScanLine8bpp(FX_LPBYTE pBuf, int width)
{
for (int i = 0; i < width; i ++)
if (pBuf[i] > 0x40) {
return TRUE;
}
return FALSE;
}
static int _DetectFirstLastScan(const CFX_DIBitmap* pBitmap, FX_BOOL bFirst)
{
int height = pBitmap->GetHeight(), pitch = pBitmap->GetPitch(), width = pBitmap->GetWidth();
int bpp = pBitmap->GetBPP();
if (bpp > 8) {
width *= bpp / 8;
}
FX_LPBYTE pBuf = pBitmap->GetBuffer();
int line = bFirst ? 0 : height - 1;
int line_step = bFirst ? 1 : -1;
int line_end = bFirst ? height : -1;
while (line != line_end) {
if (bpp == 1) {
if (_IsScanLine1bpp(pBuf + line * pitch, width)) {
return line;
}
} else {
if (_IsScanLine8bpp(pBuf + line * pitch, width)) {
return line;
}
}
line += line_step;
}
return -1;
}
CFX_GlyphBitmap* CPDF_Type3Cache::RenderGlyph(CPDF_Type3Glyphs* pSize, FX_DWORD charcode, const CFX_AffineMatrix* pMatrix, FX_FLOAT retinaScaleX, FX_FLOAT retinaScaleY)
{
CPDF_Type3Char* pChar = m_pFont->LoadChar(charcode);
if (pChar == NULL || pChar->m_pBitmap == NULL) {
return NULL;
}
CFX_DIBitmap* pBitmap = pChar->m_pBitmap;
CFX_AffineMatrix image_matrix, text_matrix;
image_matrix = pChar->m_ImageMatrix;
text_matrix.Set(pMatrix->a, pMatrix->b, pMatrix->c, pMatrix->d, 0, 0);
image_matrix.Concat(text_matrix);
CFX_DIBitmap* pResBitmap = NULL;
int left, top;
if (FXSYS_fabs(image_matrix.b) < FXSYS_fabs(image_matrix.a) / 100 && FXSYS_fabs(image_matrix.c) < FXSYS_fabs(image_matrix.d) / 100) {
int top_line, bottom_line;
top_line = _DetectFirstLastScan(pBitmap, TRUE);
bottom_line = _DetectFirstLastScan(pBitmap, FALSE);
if (top_line == 0 && bottom_line == pBitmap->GetHeight() - 1) {
FX_FLOAT top_y = image_matrix.d + image_matrix.f;
FX_FLOAT bottom_y = image_matrix.f;
FX_BOOL bFlipped = top_y > bottom_y;
if (bFlipped) {
FX_FLOAT temp = top_y;
top_y = bottom_y;
bottom_y = temp;
}
pSize->AdjustBlue(top_y, bottom_y, top_line, bottom_line);
pResBitmap = pBitmap->StretchTo((int)(FXSYS_round(image_matrix.a) * retinaScaleX), (int)((bFlipped ? top_line - bottom_line : bottom_line - top_line) * retinaScaleY));
top = top_line;
if (image_matrix.a < 0) {
image_matrix.Scale(retinaScaleX, retinaScaleY);
left = FXSYS_round(image_matrix.e + image_matrix.a);
} else {
left = FXSYS_round(image_matrix.e);
}
} else {
}
}
if (pResBitmap == NULL) {
image_matrix.Scale(retinaScaleX, retinaScaleY);
pResBitmap = pBitmap->TransformTo(&image_matrix, left, top);
}
if (pResBitmap == NULL) {
return NULL;
}
CFX_GlyphBitmap* pGlyph = FX_NEW CFX_GlyphBitmap;
pGlyph->m_Left = left;
pGlyph->m_Top = -top;
pGlyph->m_Bitmap.TakeOver(pResBitmap);
delete pResBitmap;
return pGlyph;
}
void _CPDF_UniqueKeyGen::Generate(int count, ...)
{
va_list argList;
va_start(argList, count);
for (int i = 0; i < count; i ++) {
int p = va_arg(argList, int);
((FX_DWORD*)m_Key)[i] = p;
}
va_end(argList);
m_KeyLen = count * sizeof(FX_DWORD);
}
FX_BOOL CPDF_RenderStatus::ProcessText(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device, CFX_PathData* pClippingPath)
{
if(textobj->m_nChars == 0) {
return TRUE;
}
int text_render_mode = textobj->m_TextState.GetObject()->m_TextMode;
if (text_render_mode == 3) {
return TRUE;
}
CPDF_Font* pFont = textobj->m_TextState.GetFont();
if (pFont->GetFontType() == PDFFONT_TYPE3) {
return ProcessType3Text(textobj, pObj2Device);
}
FX_BOOL bFill = FALSE, bStroke = FALSE, bClip = FALSE;
if (pClippingPath) {
bClip = TRUE;
} else {
switch (text_render_mode) {
case 0:
case 4:
bFill = TRUE;
break;
case 1:
case 5:
if (pFont->GetFace() == NULL && !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) {
bFill = TRUE;
} else {
bStroke = TRUE;
}
break;
case 2:
case 6:
if (pFont->GetFace() == NULL && !(pFont->GetSubstFont()->m_SubstFlags & FXFONT_SUBST_GLYPHPATH)) {
bFill = TRUE;
} else {
bFill = bStroke = TRUE;
}
break;
case 3:
case 7:
return TRUE;
default:
bFill = TRUE;
}
}
FX_ARGB stroke_argb = 0, fill_argb = 0;
FX_BOOL bPattern = FALSE;
if (bStroke) {
if (textobj->m_ColorState.GetStrokeColor()->IsPattern()) {
bPattern = TRUE;
} else {
stroke_argb = GetStrokeArgb(textobj);
}
}
if (bFill) {
if (textobj->m_ColorState.GetFillColor()->IsPattern()) {
bPattern = TRUE;
} else {
fill_argb = GetFillArgb(textobj);
}
}
CFX_AffineMatrix text_matrix;
textobj->GetTextMatrix(&text_matrix);
if(IsAvailableMatrix(text_matrix) == FALSE) {
return TRUE;
}
FX_FLOAT font_size = textobj->m_TextState.GetFontSize();
if (bPattern) {
DrawTextPathWithPattern(textobj, pObj2Device, pFont, font_size, &text_matrix, bFill, bStroke);
return TRUE;
}
#if defined(_FPDFAPI_MINI_)
if (bFill) {
bStroke = FALSE;
}
if (bStroke) {
if (font_size * text_matrix.GetXUnit() * pObj2Device->GetXUnit() < 6) {
bStroke = FALSE;
}
}
#endif
if (bClip || bStroke) {
const CFX_AffineMatrix* pDeviceMatrix = pObj2Device;
CFX_AffineMatrix device_matrix;
if (bStroke) {
const FX_FLOAT* pCTM = textobj->m_TextState.GetObject()->m_CTM;
if (pCTM[0] != 1.0f || pCTM[3] != 1.0f) {
CFX_AffineMatrix ctm(pCTM[0], pCTM[1], pCTM[2], pCTM[3], 0, 0);
text_matrix.ConcatInverse(ctm);
device_matrix.Copy(ctm);
device_matrix.Concat(*pObj2Device);
pDeviceMatrix = &device_matrix;
}
}
int flag = 0;
if (bStroke && bFill) {
flag |= FX_FILL_STROKE;
flag |= FX_STROKE_TEXT_MODE;
}
#if !defined(_FPDFAPI_MINI_) || defined(_FXCORE_FEATURE_ALL_)
const CPDF_GeneralStateData* pGeneralData = ((CPDF_PageObject*)textobj)->m_GeneralState;
if (pGeneralData && pGeneralData->m_StrokeAdjust) {
flag |= FX_STROKE_ADJUST;
}
#endif
if (m_Options.m_Flags & RENDER_NOTEXTSMOOTH) {
flag |= FXFILL_NOPATHSMOOTH;
}
return CPDF_TextRenderer::DrawTextPath(m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size,
&text_matrix, pDeviceMatrix, textobj->m_GraphState, fill_argb, stroke_argb, pClippingPath, flag);
}
text_matrix.Concat(*pObj2Device);
return CPDF_TextRenderer::DrawNormalText(m_pDevice, textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size,
&text_matrix, fill_argb, &m_Options);
}
CPDF_Type3Cache* CPDF_RenderStatus::GetCachedType3(CPDF_Type3Font* pFont)
{
if (pFont->m_pDocument == NULL) {
return NULL;
}
pFont->m_pDocument->GetPageData()->GetFont(pFont->GetFontDict(), FALSE);
return pFont->m_pDocument->GetRenderData()->GetCachedType3(pFont);
}
static void ReleaseCachedType3(CPDF_Type3Font* pFont)
{
if (pFont->m_pDocument == NULL) {
return;
}
pFont->m_pDocument->GetRenderData()->ReleaseCachedType3(pFont);
pFont->m_pDocument->GetPageData()->ReleaseFont(pFont->GetFontDict());
}
FX_BOOL CPDF_Type3Char::LoadBitmap(CPDF_RenderContext* pContext)
{
if (m_pBitmap != NULL || m_pForm == NULL) {
return TRUE;
}
if (m_pForm->CountObjects() == 1 && !m_bColored) {
CPDF_PageObject *pPageObj = m_pForm->GetObjectAt(m_pForm->GetFirstObjectPosition());
if (pPageObj->m_Type == PDFPAGE_IMAGE) {
CPDF_ImageObject* pImage = (CPDF_ImageObject*)pPageObj;
m_ImageMatrix = pImage->m_Matrix;
const CFX_DIBSource* pSource = pImage->m_pImage->LoadDIBSource();
if (pSource) {
m_pBitmap = pSource->Clone();
delete pSource;
}
delete m_pForm;
m_pForm = NULL;
return TRUE;
}
if (pPageObj->m_Type == PDFPAGE_INLINES) {
CPDF_InlineImages *pInlines = (CPDF_InlineImages *)pPageObj;
if (pInlines->m_pStream) {
m_ImageMatrix = pInlines->m_Matrices[0];
CPDF_DIBSource dibsrc;
if (!dibsrc.Load(pContext->m_pDocument, pInlines->m_pStream, NULL, NULL, NULL, NULL)) {
return FALSE;
}
m_pBitmap = dibsrc.Clone();
delete m_pForm;
m_pForm = NULL;
return TRUE;
}
}
}
return FALSE;
}
class CPDF_RefType3Cache
{
public:
CPDF_RefType3Cache(CPDF_Type3Font* pType3Font)
{
m_dwCount = 0;
m_pType3Font = pType3Font;
}
~CPDF_RefType3Cache()
{
while(m_dwCount--) {
ReleaseCachedType3(m_pType3Font);
}
}
FX_DWORD m_dwCount;
CPDF_Type3Font* m_pType3Font;
};
FX_BOOL CPDF_RenderStatus::ProcessType3Text(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device)
{
CPDF_Type3Font* pType3Font = textobj->m_TextState.GetFont()->GetType3Font();
for (int j = 0; j < m_Type3FontCache.GetSize(); j++)
if ((CPDF_Type3Font*)m_Type3FontCache.GetAt(j) == pType3Font) {
return TRUE;
}
CFX_Matrix dCTM = m_pDevice->GetCTM();
FX_FLOAT sa = FXSYS_fabs(dCTM.a);
FX_FLOAT sd = FXSYS_fabs(dCTM.d);
CFX_AffineMatrix text_matrix;
textobj->GetTextMatrix(&text_matrix);
CFX_AffineMatrix char_matrix = pType3Font->GetFontMatrix();
FX_FLOAT font_size = textobj->m_TextState.GetFontSize();
char_matrix.Scale(font_size, font_size);
FX_ARGB fill_argb = GetFillArgb(textobj, TRUE);
int fill_alpha = FXARGB_A(fill_argb);
int device_class = m_pDevice->GetDeviceClass();
FXTEXT_GLYPHPOS* pGlyphAndPos = NULL;
if (device_class == FXDC_DISPLAY) {
pGlyphAndPos = FX_Alloc(FXTEXT_GLYPHPOS, textobj->m_nChars);
FXSYS_memset32(pGlyphAndPos, 0, sizeof(FXTEXT_GLYPHPOS) * textobj->m_nChars);
} else if (fill_alpha < 255) {
return FALSE;
}
CPDF_RefType3Cache refTypeCache(pType3Font);
FX_DWORD *pChars = textobj->m_pCharCodes;
if (textobj->m_nChars == 1) {
pChars = (FX_DWORD*)(&textobj->m_pCharCodes);
}
for (int iChar = 0; iChar < textobj->m_nChars; iChar ++) {
FX_DWORD charcode = pChars[iChar];
if (charcode == (FX_DWORD) - 1) {
continue;
}
CPDF_Type3Char* pType3Char = pType3Font->LoadChar(charcode);
if (pType3Char == NULL) {
continue;
}
CFX_AffineMatrix matrix = char_matrix;
matrix.e += iChar ? textobj->m_pCharPos[iChar - 1] : 0;
matrix.Concat(text_matrix);
matrix.Concat(*pObj2Device);
if (!pType3Char->LoadBitmap(m_pContext)) {
if (pGlyphAndPos) {
for (int i = 0; i < iChar; i ++) {
FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[i];
if (glyph.m_pGlyph == NULL) {
continue;
}
m_pDevice->SetBitMask(&glyph.m_pGlyph->m_Bitmap,
glyph.m_OriginX + glyph.m_pGlyph->m_Left,
glyph.m_OriginY - glyph.m_pGlyph->m_Top, fill_argb);
}
FX_Free(pGlyphAndPos);
pGlyphAndPos = NULL;
}
CPDF_GraphicStates* pStates = CloneObjStates(textobj, FALSE);
CPDF_RenderOptions Options = m_Options;
Options.m_Flags |= RENDER_FORCE_HALFTONE | RENDER_RECT_AA;
Options.m_Flags &= ~RENDER_FORCE_DOWNSAMPLE;
CPDF_Dictionary* pFormResource = NULL;
if (pType3Char->m_pForm && pType3Char->m_pForm->m_pFormDict) {
pFormResource = pType3Char->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
}
if (fill_alpha == 255) {
CPDF_RenderStatus status;
status.Initialize(m_Level + 1, m_pContext, m_pDevice, NULL, NULL, this, pStates, &Options,
pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb);
status.m_Type3FontCache.Append(m_Type3FontCache);
status.m_Type3FontCache.Add(pType3Font);
m_pDevice->SaveState();
status.RenderObjectList(pType3Char->m_pForm, &matrix);
m_pDevice->RestoreState();
} else {
CFX_FloatRect rect_f = pType3Char->m_pForm->CalcBoundingBox();
rect_f.Transform(&matrix);
FX_RECT rect = rect_f.GetOutterRect();
CFX_FxgeDevice bitmap_device;
if (!bitmap_device.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), FXDIB_Argb)) {
return TRUE;
}
bitmap_device.GetBitmap()->Clear(0);
CPDF_RenderStatus status;
status.Initialize(m_Level + 1, m_pContext, &bitmap_device, NULL, NULL, this, pStates, &Options,
pType3Char->m_pForm->m_Transparency, m_bDropObjects, pFormResource, FALSE, pType3Char, fill_argb);
status.m_Type3FontCache.Append(m_Type3FontCache);
status.m_Type3FontCache.Add(pType3Font);
matrix.TranslateI(-rect.left, -rect.top);
matrix.Scale(sa, sd);
status.RenderObjectList(pType3Char->m_pForm, &matrix);
m_pDevice->SetDIBits(bitmap_device.GetBitmap(), rect.left, rect.top);
}
delete pStates;
} else if (pType3Char->m_pBitmap) {
if (device_class == FXDC_DISPLAY) {
CPDF_Type3Cache* pCache = GetCachedType3(pType3Font);
refTypeCache.m_dwCount++;
CFX_GlyphBitmap* pBitmap = pCache->LoadGlyph(charcode, &matrix, sa, sd);
if (pBitmap == NULL) {
continue;
}
int origin_x = FXSYS_round(matrix.e);
int origin_y = FXSYS_round(matrix.f);
if (pGlyphAndPos) {
pGlyphAndPos[iChar].m_pGlyph = pBitmap;
pGlyphAndPos[iChar].m_OriginX = origin_x;
pGlyphAndPos[iChar].m_OriginY = origin_y;
} else {
m_pDevice->SetBitMask(&pBitmap->m_Bitmap, origin_x + pBitmap->m_Left, origin_y - pBitmap->m_Top, fill_argb);
}
} else {
CFX_AffineMatrix image_matrix = pType3Char->m_ImageMatrix;
image_matrix.Concat(matrix);
CPDF_ImageRenderer renderer;
if (renderer.Start(this, pType3Char->m_pBitmap, fill_argb, 255, &image_matrix, 0, FALSE)) {
renderer.Continue(NULL);
}
if (!renderer.m_Result) {
return FALSE;
}
}
}
}
if (pGlyphAndPos) {
FX_RECT rect = FXGE_GetGlyphsBBox(pGlyphAndPos, textobj->m_nChars, 0, sa, sd);
CFX_DIBitmap bitmap;
if (!bitmap.Create((int)(rect.Width() * sa), (int)(rect.Height() * sd), FXDIB_8bppMask)) {
FX_Free(pGlyphAndPos);
return TRUE;
}
bitmap.Clear(0);
for (int iChar = 0; iChar < textobj->m_nChars; iChar ++) {
FXTEXT_GLYPHPOS& glyph = pGlyphAndPos[iChar];
if (glyph.m_pGlyph == NULL) {
continue;
}
bitmap.TransferBitmap((int)((glyph.m_OriginX + glyph.m_pGlyph->m_Left - rect.left) * sa),
(int)((glyph.m_OriginY - glyph.m_pGlyph->m_Top - rect.top) * sd),
glyph.m_pGlyph->m_Bitmap.GetWidth(), glyph.m_pGlyph->m_Bitmap.GetHeight(),
&glyph.m_pGlyph->m_Bitmap, 0, 0);
}
m_pDevice->SetBitMask(&bitmap, rect.left, rect.top, fill_argb);
FX_Free(pGlyphAndPos);
}
return TRUE;
}
class CPDF_CharPosList
{
public:
CPDF_CharPosList();
~CPDF_CharPosList();
void Load(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, CPDF_Font* pFont, FX_FLOAT font_size);
FXTEXT_CHARPOS* m_pCharPos;
FX_DWORD m_nChars;
};
FX_FLOAT _CIDTransformToFloat(FX_BYTE ch);
CPDF_CharPosList::CPDF_CharPosList()
{
m_pCharPos = NULL;
}
CPDF_CharPosList::~CPDF_CharPosList()
{
if (m_pCharPos) {
FX_Free(m_pCharPos);
}
}
void CPDF_CharPosList::Load(int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos, CPDF_Font* pFont,
FX_FLOAT FontSize)
{
m_pCharPos = FX_Alloc(FXTEXT_CHARPOS, nChars);
FXSYS_memset32(m_pCharPos, 0, sizeof(FXTEXT_CHARPOS) * nChars);
m_nChars = 0;
CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
FX_BOOL bVertWriting = pCIDFont && pCIDFont->IsVertWriting();
for (int iChar = 0; iChar < nChars; iChar ++) {
FX_DWORD CharCode = nChars == 1 ? (FX_DWORD)(FX_UINTPTR)pCharCodes : pCharCodes[iChar];
if (CharCode == (FX_DWORD) - 1) {
continue;
}
FX_BOOL bVert = FALSE;
FXTEXT_CHARPOS& charpos = m_pCharPos[m_nChars++];
if (pCIDFont) {
charpos.m_bFontStyle = pCIDFont->IsFontStyleFromCharCode(CharCode);
}
charpos.m_GlyphIndex = pFont->GlyphFromCharCode(CharCode, &bVert);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
charpos.m_ExtGID = pFont->GlyphFromCharCodeExt(CharCode);
#endif
if (!pFont->IsEmbedded() && pFont->GetFontType() != PDFFONT_CIDFONT) {
charpos.m_FontCharWidth = pFont->GetCharWidthF(CharCode);
} else {
charpos.m_FontCharWidth = 0;
}
charpos.m_OriginX = iChar ? pCharPos[iChar - 1] : 0;
charpos.m_OriginY = 0;
charpos.m_bGlyphAdjust = FALSE;
if (pCIDFont == NULL) {
continue;
}
FX_WORD CID = pCIDFont->CIDFromCharCode(CharCode);
if (bVertWriting) {
charpos.m_OriginY = charpos.m_OriginX;
charpos.m_OriginX = 0;
short vx, vy;
pCIDFont->GetVertOrigin(CID, vx, vy);
charpos.m_OriginX -= FontSize * vx / 1000;
charpos.m_OriginY -= FontSize * vy / 1000;
}
FX_LPCBYTE pTransform = pCIDFont->GetCIDTransform(CID);
if (pTransform && !bVert) {
charpos.m_AdjustMatrix[0] = _CIDTransformToFloat(pTransform[0]);
charpos.m_AdjustMatrix[2] = _CIDTransformToFloat(pTransform[2]);
charpos.m_AdjustMatrix[1] = _CIDTransformToFloat(pTransform[1]);
charpos.m_AdjustMatrix[3] = _CIDTransformToFloat(pTransform[3]);
charpos.m_OriginX += _CIDTransformToFloat(pTransform[4]) * FontSize;
charpos.m_OriginY += _CIDTransformToFloat(pTransform[5]) * FontSize;
charpos.m_bGlyphAdjust = TRUE;
}
}
}
FX_BOOL CPDF_TextRenderer::DrawTextPath(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos,
CPDF_Font* pFont, FX_FLOAT font_size,
const CFX_AffineMatrix* pText2User, const CFX_AffineMatrix* pUser2Device,
const CFX_GraphStateData* pGraphState,
FX_ARGB fill_argb, FX_ARGB stroke_argb, CFX_PathData* pClippingPath, int nFlag)
{
CFX_FontCache* pCache = pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() : NULL;
CPDF_CharPosList CharPosList;
CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size);
return pDevice->DrawTextPath(CharPosList.m_nChars, CharPosList.m_pCharPos,
&pFont->m_Font, pCache, font_size, pText2User, pUser2Device,
pGraphState, fill_argb, stroke_argb, pClippingPath, nFlag);
}
void CPDF_TextRenderer::DrawTextString(CFX_RenderDevice* pDevice, int left, int top, CPDF_Font* pFont, int height,
const CFX_ByteString& str, FX_ARGB argb)
{
FX_RECT font_bbox;
pFont->GetFontBBox(font_bbox);
FX_FLOAT font_size = (FX_FLOAT)height * 1000.0f / (FX_FLOAT)(font_bbox.top - font_bbox.bottom);
FX_FLOAT origin_x = (FX_FLOAT)left;
FX_FLOAT origin_y = (FX_FLOAT)top + font_size * (FX_FLOAT)font_bbox.top / 1000.0f;
CFX_AffineMatrix matrix(1.0f, 0, 0, -1.0f, 0, 0);
DrawTextString(pDevice, origin_x, origin_y, pFont, font_size, &matrix, str, argb);
}
void CPDF_TextRenderer::DrawTextString(CFX_RenderDevice* pDevice, FX_FLOAT origin_x, FX_FLOAT origin_y, CPDF_Font* pFont, FX_FLOAT font_size,
const CFX_AffineMatrix* pMatrix, const CFX_ByteString& str, FX_ARGB fill_argb,
FX_ARGB stroke_argb, const CFX_GraphStateData* pGraphState, const CPDF_RenderOptions* pOptions)
{
int nChars = pFont->CountChar(str, str.GetLength());
if (nChars == 0) {
return;
}
FX_DWORD charcode;
int offset = 0;
FX_DWORD* pCharCodes;
FX_FLOAT* pCharPos;
if (nChars == 1) {
charcode = pFont->GetNextChar(str, offset);
pCharCodes = (FX_DWORD*)(FX_UINTPTR)charcode;
pCharPos = NULL;
} else {
pCharCodes = FX_Alloc(FX_DWORD, nChars);
pCharPos = FX_Alloc(FX_FLOAT, nChars - 1);
FX_FLOAT cur_pos = 0;
for (int i = 0; i < nChars; i ++) {
pCharCodes[i] = pFont->GetNextChar(str, offset);
if (i) {
pCharPos[i - 1] = cur_pos;
}
cur_pos += pFont->GetCharWidthF(pCharCodes[i]) * font_size / 1000;
}
}
CFX_AffineMatrix matrix;
if (pMatrix) {
matrix = *pMatrix;
}
matrix.e = origin_x;
matrix.f = origin_y;
if (pFont->GetFontType() == PDFFONT_TYPE3)
;
else if (stroke_argb == 0) {
DrawNormalText(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, &matrix, fill_argb, pOptions);
} else
DrawTextPath(pDevice, nChars, pCharCodes, pCharPos, pFont, font_size, &matrix, NULL, pGraphState,
fill_argb, stroke_argb, NULL);
if (nChars > 1) {
FX_Free(pCharCodes);
FX_Free(pCharPos);
}
}
FX_BOOL CPDF_TextRenderer::DrawNormalText(CFX_RenderDevice* pDevice, int nChars, FX_DWORD* pCharCodes, FX_FLOAT* pCharPos,
CPDF_Font* pFont, FX_FLOAT font_size,
const CFX_AffineMatrix* pText2Device,
FX_ARGB fill_argb, const CPDF_RenderOptions* pOptions)
{
CFX_FontCache* pCache = pFont->m_pDocument ? pFont->m_pDocument->GetRenderData()->GetFontCache() : NULL;
CPDF_CharPosList CharPosList;
CharPosList.Load(nChars, pCharCodes, pCharPos, pFont, font_size);
int FXGE_flags = 0;
if (pOptions) {
FX_DWORD dwFlags = pOptions->m_Flags;
if (dwFlags & RENDER_CLEARTYPE) {
FXGE_flags |= FXTEXT_CLEARTYPE;
if (dwFlags & RENDER_BGR_STRIPE) {
FXGE_flags |= FXTEXT_BGR_STRIPE;
}
}
if (dwFlags & RENDER_NOTEXTSMOOTH) {
FXGE_flags |= FXTEXT_NOSMOOTH;
}
if (dwFlags & RENDER_PRINTGRAPHICTEXT) {
FXGE_flags |= FXTEXT_PRINTGRAPHICTEXT;
}
if (dwFlags & RENDER_NO_NATIVETEXT) {
FXGE_flags |= FXTEXT_NO_NATIVETEXT;
}
if (dwFlags & RENDER_PRINTIMAGETEXT) {
FXGE_flags |= FXTEXT_PRINTIMAGETEXT;
}
} else {
FXGE_flags = FXTEXT_CLEARTYPE;
}
if (pFont->GetFontType() & PDFFONT_CIDFONT) {
FXGE_flags |= FXFONT_CIDFONT;
}
return pDevice->DrawNormalText(CharPosList.m_nChars, CharPosList.m_pCharPos, &pFont->m_Font, pCache, font_size, pText2Device, fill_argb, FXGE_flags);
}
void CPDF_RenderStatus::DrawTextPathWithPattern(const CPDF_TextObject* textobj, const CFX_AffineMatrix* pObj2Device,
CPDF_Font* pFont, FX_FLOAT font_size,
const CFX_AffineMatrix* pTextMatrix, FX_BOOL bFill, FX_BOOL bStroke)
{
if (!bStroke) {
CPDF_PathObject path;
CPDF_TextObject* pCopy = FX_NEW CPDF_TextObject;
pCopy->Copy(textobj);
path.m_bStroke = FALSE;
path.m_FillType = FXFILL_WINDING;
path.m_ClipPath.AppendTexts(&pCopy, 1);
path.m_ColorState = textobj->m_ColorState;
path.m_Path.New()->AppendRect(textobj->m_Left, textobj->m_Bottom, textobj->m_Right, textobj->m_Top);
path.m_Left = textobj->m_Left;
path.m_Bottom = textobj->m_Bottom;
path.m_Right = textobj->m_Right;
path.m_Top = textobj->m_Top;
RenderSingleObject(&path, pObj2Device);
return;
}
CFX_FontCache* pCache;
if (pFont->m_pDocument) {
pCache = pFont->m_pDocument->GetRenderData()->GetFontCache();
} else {
pCache = CFX_GEModule::Get()->GetFontCache();
}
CFX_FaceCache* pFaceCache = pCache->GetCachedFace(&pFont->m_Font);
FX_FONTCACHE_DEFINE(pCache, &pFont->m_Font);
CPDF_CharPosList CharPosList;
CharPosList.Load(textobj->m_nChars, textobj->m_pCharCodes, textobj->m_pCharPos, pFont, font_size);
for (FX_DWORD i = 0; i < CharPosList.m_nChars; i ++) {
FXTEXT_CHARPOS& charpos = CharPosList.m_pCharPos[i];
const CFX_PathData* pPath = pFaceCache->LoadGlyphPath(&pFont->m_Font, charpos.m_GlyphIndex,
charpos.m_FontCharWidth);
if (pPath == NULL) {
continue;
}
CPDF_PathObject path;
path.m_GraphState = textobj->m_GraphState;
path.m_ColorState = textobj->m_ColorState;
CFX_AffineMatrix matrix;
if (charpos.m_bGlyphAdjust)
matrix.Set(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1],
charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0);
matrix.Concat(font_size, 0, 0, font_size, charpos.m_OriginX, charpos.m_OriginY);
path.m_Path.New()->Append(pPath, &matrix);
path.m_Matrix = *pTextMatrix;
path.m_bStroke = bStroke;
path.m_FillType = bFill ? FXFILL_WINDING : 0;
path.CalcBoundingBox();
ProcessPath(&path, pObj2Device);
}
}
CFX_PathData* CPDF_Font::LoadGlyphPath(FX_DWORD charcode, int dest_width)
{
int glyph_index = GlyphFromCharCode(charcode);
if (m_Font.m_Face == NULL) {
return NULL;
}
return m_Font.LoadGlyphPath(glyph_index, dest_width);
}